Automatic gas-valve.



K. SZEREDL AUTGMATIC GAS VALVE.

APPUCATION man ill/1.13. 191s.

l,%8,899. Pa'tentad 060.8,1918.

1/ 5/ as i9 INVENTOR 3 Kalmarzfierzdi, BY fizz ATTORNEY KALMAN SZEREDI, 0F CLEVELAND, OHIO.

AUTOMATIC GAS-VALVE.

Specification of Letters Patent.

Patented Oct. 8, 1918.

Application filed March 13, 1918, Serial N 0. 222,051.

To all whom it may concern:

Be it known that I, KALMAN Sznnnnr, a subject of the King of Hungary, residing at Cleveland, county of Ouyahoga, and State of Ohio, have invented certain new and useful Improvements in Automatic Gas-Valves, of which the following is a specification.

This invention relates to improvements in gas valves and particularly to types in which the gas valve leading to the burner is automatically closed subsequent upon extinguishing the gas flame.

The principal object of the invention is to provide a simple and effective means which may be applied to gas burners of ordinary construction, the same being so arranged that, should the flame for any reason become extinguished, the gas passage leading to the burner is automatically closed.

These and other like objects are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawing, forming a material part of this disclosure, and. in which Figure 1 is a side elevational view showing the application of the invention, parts being broken away in order to disclose the interior.

Fig, 2 is a fragmentary side elevational view of the same showing the gas orifice in a closed position.

Fig. 3 is a partial top plan View of the same, and

Fig. 4 is a partial side elevational view taken in a difl'erent plane from Figs. 1 and 2.

In the drawings the numeral 10 indicates the gas supply pipe leading through an elbow fitting 11, to a stem 12, containing a relatively small longitudinal opening 14, through which the gas normally passes, the stem being enveloped in a cylindrical casing 15, upon which abuts the lower end of a second section 16, of the casing each being formed with corrugations 17 and 18, by means of which one can be turned relative to the other, a set screw 19 being provided for holding the parts in adjustment on the stem.

Upon the casing 16, is disposed a guard 20, from which extends one limb 21 of a U shaped loop, terminating in a gas burner 22 here shown to be of the inverted type. This burner is preferably contained within a transparent globe 24, the same being held to the loop by bracket mounting 25, all of therethrough, the sphere being the foregoing parts being of the ordinary style of construction.

The invention consists in supplying certain means whereby the gas passage 14 is automatically closed, it ordinarily taking place through an opening 28, formed in a rotatable spindle 29, to the outer extending end of which is attached an angular crank element 30, normally held in a horizontal position, by means of a coiled torsional spring 32. This extending crank 30 is held in a vertical position when in contact with a lever 31, hingedly engaged by a pin fixed in a clamp ring 33, encircling the casing element 15, the having an elongated slot 34, in which operates a pin 35, carried at the end 38 of a curved lever bent to conform with the shape of the U bend 21, and pivoted on a pin set in a clamp ring 41 surrounding the supporting U bend, the opposite end 43 of the lever 39, extending normally horizontally outward.

Another clamp ring 45 is engaged with the U bend 21, and has formed with it an annulus or ring 46, having a vertical axis, the annulus being fitted to receive a sphere 48, so that the same may normally pass guided by a stem 50, passing through a boss 51, formed with the arm of a bracket 52, also clamped to the U bend 21, the arm having a vertically extending end 53, at the extreme upper portion of which is pivotally engaged a detent 54 having an outwardly extending operating knob 55.

The upper portion of the stem 50, has formed with it a lateral projection 57 an operating handle 58, and an oppositely disposed projection 59, which is adapted to make contact with the free end 43 of the lever 39, when the sphere is in a downward position, as shown in Fig. 2, thereby releasing the lever 31, and permitting the spindle 29 to be rotated, due to the torsional effect of the spring 32.

In operatlon, the gas havin been turned on in the ordinary manner, the handle 58 is raised, bringing the sphere 48 upward through the ring 46, and the detent 54, engaged with the projection 57, the sphere 48 is almost immediately expanded, due to heat from the burner preventing it from dropping downward through the ring, at which time the detent is swung to one side and the sphere supported on the ring but is prevented from passing downward.

opposite end of the lever 33 When however, the flame becomes eX- tinguished, the sphere 4L8 cools to a certain eXtent so as to pass through the ring 46 allowing the projection 59 to make contact with the end 53 of the lever 38, raising the stop lever 89, and allowing the spindle 29 to be'rotated by the spring thereby closing oil the gas.

Havin thus described my invention what I claim as new and desire tosecure by Letters Patent, is.

a 1. In an automatic valve, with a gas burner, and aU the combination shaped gas pipe upon which said burner is mounted, of a spindle rotatable transversely in said gas pipe whereby its passage is controlled, said spindle having an opening registrable with the opening through said.pipe, means for normally maintaining said spindle in a closed positlon, an arm formed with said spindle, a lever adjustably arranged on said said arm is held in an a second lever pivoted on said gas pipe, an open annulus secured to said gas pipe, a sphere adapted to normally slide through said annulus, a stem formedwithsaid sphere, saidstem extended normally upward, projections formed with said stem, a detent engageable with one of said projections, a handle formed with said stem and means operative upon the exgas pipe by which operative position,

Copies of this patent may be obtained for five cents each, Joy addressing the Washington, D. C.

tinguishment of said gas burner permitting said sphere to drop whereby the other of said arm projections makes contact with said lever permitting said spindle to rotate.

2. In an automatic gas valve, the combination with a burner, and a U shaped supply pipe engaged therewith, said supply pipe having a central passage formed therethrough, of a spindle having an opening registrable with the passage in said gas supply pipe, a crank formed with said spindle, means for normally maintaining said spindle so that the openings are opposed oneto the other, a ring supported by said U shaped supply pipe, a sphere normally slidable through said ring, a stem formed with said sphere, a bracket in which said stem is supported, projections extending oppositely outward from said stem, a handle formed with said stem, a detent engageable with one of said projections, a lever pivotally mounted on said U shaped gas pipe, one of the ends of said lever being engageable with the other of said projections from said stem, and means operated by the opposite end of said lever whereby said spindle may be released so as to close said gas passage at such time as said sphere may pass through said ring.

In testimony whereof I have aflixed my signature.

KALMAN SZEBEDI.

Commissioner of latents, V 

